Vulnerability Monitor

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CVE-2011-4362

Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.

Published

2011-12-24T19:55:05.240

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lighttpd	lighttpd	< 1.4.30	Yes
Application	lighttpd	lighttpd	1.5.0	Yes
Operating System	debian	debian_linux	5.0	Yes
Operating System	debian	debian_linux	6.0	Yes
Operating System	debian	debian_linux	7.0	Yes

References

http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html Broken Link ([email protected])
http://blog.pi3.com.pl/?p=277 Exploit, Third Party Advisory ([email protected])
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt Exploit, Patch, Vendor Advisory ([email protected])
http://jvn.jp/en/jp/JVN37417423/index.html Third Party Advisory ([email protected])
http://redmine.lighttpd.net/issues/2370 Exploit, Patch, Vendor Advisory ([email protected])
http://secunia.com/advisories/47260 Third Party Advisory ([email protected])
http://www.debian.org/security/2011/dsa-2368 Third Party Advisory ([email protected])
http://www.exploit-db.com/exploits/18295 Exploit, Third Party Advisory, VDB Entry ([email protected])
http://www.openwall.com/lists/oss-security/2011/11/29/13 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2011/11/29/8 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securitytracker.com/id?1026359 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=758624 Issue Tracking, Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/71536 Third Party Advisory, VDB Entry ([email protected])
http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://blog.pi3.com.pl/?p=277 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://jvn.jp/en/jp/JVN37417423/index.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://redmine.lighttpd.net/issues/2370 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/47260 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2011/dsa-2368 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.exploit-db.com/exploits/18295 Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/11/29/13 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2011/11/29/8 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1026359 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=758624 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/71536 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)